Microsoft Sentinel Analytic Rules
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User Accessed Suspicious URL Categories

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Idfb0f4a93-d8ad-4b54-9931-85bdb7550f90
RulenameUser Accessed Suspicious URL Categories
DescriptionCreates an incident in the event the requested URL accessed by the user has been identified as Suspicious, Phishing, or Hacking.
SeverityMedium
TacticsInitialAccess
CommandAndControl
TechniquesT1566
T1071
Required data connectorsSyslogAma
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SymantecProxySG/Analytic Rules/UserAccessedSuspiciousURLCategories.yaml
Version1.0.5
Arm templatefb0f4a93-d8ad-4b54-9931-85bdb7550f90.json
Deploy To Azure
SymantecProxySG
| mv-expand cs_categories
| where cs_categories has_any ("Suspicious","phishing", "hacking")
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by sc_filter_result, cs_userdn, c_ip, cs_host, Computer,  tostring(cs_categories)
queryPeriod: 1h
kind: Scheduled
version: 1.0.5
name: User Accessed Suspicious URL Categories
relevantTechniques:
- T1566
- T1071
severity: Medium
description: |
    'Creates an incident in the event the requested URL accessed by the user has been identified as Suspicious, Phishing, or Hacking.'
requiredDataConnectors:
- connectorId: SyslogAma
  datatypes:
  - Syslog
query: |
  SymantecProxySG
  | mv-expand cs_categories
  | where cs_categories has_any ("Suspicious","phishing", "hacking")
  | summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by sc_filter_result, cs_userdn, c_ip, cs_host, Computer,  tostring(cs_categories)  
tactics:
- InitialAccess
- CommandAndControl
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SymantecProxySG/Analytic Rules/UserAccessedSuspiciousURLCategories.yaml
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: cs_userdn
  entityType: Account
- fieldMappings:
  - identifier: FullName
    columnName: Computer
  entityType: Host
- fieldMappings:
  - identifier: Address
    columnName: c_ip
  entityType: IP
triggerThreshold: 0
id: fb0f4a93-d8ad-4b54-9931-85bdb7550f90
triggerOperator: gt
queryFrequency: 1h
status: Available
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/fb0f4a93-d8ad-4b54-9931-85bdb7550f90')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/fb0f4a93-d8ad-4b54-9931-85bdb7550f90')]",
      "properties": {
        "alertRuleTemplateName": "fb0f4a93-d8ad-4b54-9931-85bdb7550f90",
        "customDetails": null,
        "description": "'Creates an incident in the event the requested URL accessed by the user has been identified as Suspicious, Phishing, or Hacking.'\n",
        "displayName": "User Accessed Suspicious URL Categories",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "cs_userdn",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "Computer",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "c_ip",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SymantecProxySG/Analytic Rules/UserAccessedSuspiciousURLCategories.yaml",
        "query": "SymantecProxySG\n| mv-expand cs_categories\n| where cs_categories has_any (\"Suspicious\",\"phishing\", \"hacking\")\n| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by sc_filter_result, cs_userdn, c_ip, cs_host, Computer,  tostring(cs_categories)\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl",
          "InitialAccess"
        ],
        "techniques": [
          "T1071",
          "T1566"
        ],
        "templateVersion": "1.0.5",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}